/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     4.1
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
	This file is part of foam-extend.

	foam-extend is free software: you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by the
	Free Software Foundation, either version 3 of the License, or (at your
	option) any later version.

	foam-extend is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.

\*---------------------------------------------------------------------------*/

#include "error.H"
#include "sigQuit.H"
#include "JobInfo.H"
#include "IOstreams.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

__p_sig_fn_t Foam::sigQuit::oldAction_ = SIG_DFL;

// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //

void Foam::sigQuit::sigQuitHandler(int)
{
	// Reset old handling
	const __p_sig_fn_t success = ::signal(SIGBREAK, oldAction_);

	if( SIG_ERR == success )
	{
		FatalErrorIn
		(
			"Foam::sigQuit::sigQuitHandler()"
		)   << "Cannot reset SIGQUIT trapping"
			<< abort(FatalError);
	}

	// Update jobInfo file
	jobInfo.signalEnd();

	error::printStack(Perr);

	// Throw signal (to old handler)
	::raise(SIGBREAK);
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::sigQuit::sigQuit()
{
	oldAction_ = SIG_DFL;
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::sigQuit::~sigQuit()
{
	// Reset old handling
	if( SIG_DFL != oldAction_ )
	{
		const __p_sig_fn_t success = ::signal(SIGBREAK, oldAction_);
		oldAction_ = SIG_DFL;

		if( SIG_ERR == success )
		{
			FatalErrorIn("Foam::sigQuit::~sigQuit()")
				<< "Cannot reset SIGBREAK trapping"
				<< abort(FatalError);
		}
	}
}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

void Foam::sigQuit::set(const bool verbose)
{
	if( SIG_DFL != oldAction_ )
	{
		FatalErrorIn
		(
			"Foam::sigQuit::set()"
		)   << "Cannot call sigQuit::set() more than once"
			<< abort(FatalError);
	}

	oldAction_ = ::signal(SIGBREAK, &Foam::sigQuit::sigQuitHandler);

	if( SIG_ERR == oldAction_ )
	{
		oldAction_ = SIG_DFL;

		FatalErrorIn
		(
			"Foam::sigQuit::set()"
		)   << "Cannot set SIGQUIT trapping"
			<< abort(FatalError);
	}
}


// ************************************************************************* //
